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Steven Karlson
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Steven Karlson

General Partner

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At a glance

Full Name
Steven E. Karlson
Title
General Partner (Co-Founder)
Firm
Windspeed Ventures
Firm Type
Early-stage venture capital / angel-style firm
Investment Stage
Startup, seed, and early-stage
Target Company Profile
Early-stage software companies with a strong management team, technical differentiation in a growth market, and flexibility
Sector Focus
Software and technology — cloud platforms, infrastructure, IoT, and critical communications software
Geographic Focus
Massachusetts / U.S. Northeast (portfolio operates nationally and internationally)
Location
Concord, Massachusetts (561 Virginia Road, Suite 222, Concord, MA 01742)

Background

Steven E. Karlson is a co-founder and General Partner of Windspeed Ventures, a Massachusetts-based venture capital firm focused on startup, seed, and early-stage financing of software and technology companies. He brings more than a decade of high-technology marketing experience to the firm's investing work.

Before Windspeed, Karlson joined from Primeon, Inc., where he ran overall marketing for the software re-engineering firm. Earlier, he was a co-founder and Vice President of Marketing at Accordance Corporation, a provider of carrier-scale email server infrastructure; Accordance merged with Software.com in 1996 and later with Phone.com in 2000 to become OpenWave. His earlier career included a director role at Microsystems Software (network and office-productivity software) and roughly six years in product management at Data General Corporation.

Karlson has also been active on portfolio boards. He has served as a Director of Zipit Wireless and previously as a Director of VistaPrint Limited (NASDAQ: VPRT), which was renamed Cimpress in 2014.

He holds an MBA from Carnegie Mellon University and a BS in Electrical Engineering from Brown University. His partners at Windspeed include Managing Partner John W. Bullock and General Partner and Chairman Daniel H. Bathon, Jr.

Investment Thesis & Focus

  • Invests at the startup, seed, and early stage, concentrating on software technology companies — cloud platforms, infrastructure, IoT, and critical communications software.
  • Looks for companies combining "a strong management team, technical differentiation in a growth market opportunity and flexibility," favoring disruptive technologies aimed at emerging markets.
  • Emphasizes hands-on, active partnership beyond capital — providing guidance as companies react to market conditions and leveraging the firm's network; one portfolio CEO credited Windspeed with "significant guidance as we react to market conditions."
  • Also manages equity portfolios on behalf of institutional investors, with a focus on active engagement and strategic oversight of early-stage software ventures.

Notable Investments

  • JumpCloud — "Directory-as-a-Service" cloud identity/device management platform; current portfolio.
  • Integral — Cloud-based eFX platform for liquidity management, pricing, distribution, and risk management; current portfolio.
  • Trilio — Backup and recovery solutions originally designed for OpenStack environments; current portfolio.
  • Zipit Wireless — IoT/critical-communications technology firm; acquired by Wireless Logic in April 2025 (Karlson served as a director).
  • Bradford Networks — Network security; acquired by Fortinet.
  • VistaPrint (NASDAQ: VPRT) — Online printing/marketing services; IPO, later renamed Cimpress (Karlson was a director).
  • Bitfone — Mobile device management; acquired by Hewlett-Packard.
  • Fidelia Technology — IT management software; acquired by NetScout Systems.
  • Additional exits across the firm's history: Gracenote (Sony/Nielsen), Apps.com (Intuit), BurstPoint Networks (Avaya), OnFiber Communications (Qwest), and IPOs including Shutterfly, OpenTable, and Blue Nile.

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